Covering for plater rolls



March 25, 1930. J. TQJOHNSTON 1,752,005

COVERING FOR PLATER ROLLS Filed July 13, 1928 ATTORNEY Patented Mar. 25,1930 Hits stares ATENT OFFICE T.,J'0HI\TST01\T, OF HOLYOKE,MASSACHUSETTS, ASSIGNOR TO AMERICAN WRIT- V ING PAPER COMPADIY, OII-IOLYOELE, "MASSACHUSETTS, A CORPORATION OF DELA- WARE COVERING ESP-JApplication filed July 13,

This invention relates to improvements in coverings for plater rolls andis directed par ticularly to improved means for securing a plating orpaper finishing covering to a roll of a plating or finishing machine.

According to one common practice the rolls. of plating or finishingmachines have specially formed surfaces for imparting to paper which iscontacted therewith a finish 0 corresponding to the form of the surfaceso that for each different finish it is necessary to provide a differentroll, which is objectionable because of the cost involved It is oneobject of this invention to provide a cover for plater rolls and thelike which may be removed. therefrom so that a single roll may ifdesired carry various types of coverings for obtaining various effectsand is accomplished by the provision of a covering plate, preferably ofmetal which may carry on its surface such ornamentation as is desiredand which is sufficiently bendable to accommodate itself to the surfaceof the roll and be re movably secured thereto.

Another object of the invention is the pro vision. of means associatedwith the covering and roll whereby the covering may be wrapped about theroll in a taut and unbuckled condition and easily and quickly securedthereto.

Other objects and advantages of the invention will be observed from thefollowing description of the invention which for purposes of disclosureis illustrated by the accompanying drawings in which:

F ig. 1 is an elevational view of a roll having a longitudinal slottherein for receiving the ends. of the covering.

Fig. 2 is an enlarged partial cross sectional view through the rollshowing certain features of the invention.

Referring to the drawings in detail the novel features of the inventionwill now be described. R represents a roll of ordinary form for use in aplatin or finishing machine and is provided with a longitudinal slot Sin the periphery thereof for receiving oppositeends of the rollcovering. The cross section of the slot is irregular in that a shoulder2'is provided as shown in Fig. 2 which is PLATEB ROLLS 1928. Serial NO.292,551.

formed by a recess in the lower part of the slot. The upper walls ofopposite sides of the slot are preferably rounded to provide a smoothsurface for the end portions of the covering C plurality of threadedopenlngs are provid d in the lower side of the slot for receivingclamping bolts 4 which pass loosely through suitable openings ina clampbar B. The bar B is provided with a shoulder 10 on side thereof as shownfor the purpose to be described.

The covering C for performingthe plating or finishing operation maycomprise a sheet of metal or the like which preferably is bendable forwrapping around the periphery of the roll and has secured to itsopposite end portions reinforcing strips which may take the form ofsubstantially rigid bars 6 and-.8 as shown.

The length of the covering will. of. course be such as to properly coverthe roll so that the reinforcing bar 8- thereof atone end may underliethe shoulder 2 of the slot while the other bar 6 of the otherend willenter theslot of said roll. The covering and roll are assembled in thefollowingmanner: With the bar 8 of one end of the covering below theshoulder 2 of the roll slot the'bar B isinserted in the slot so that theshoulder 10 thereof bears upon the upper side of the reinforcing bar 6at the other end of the covering. Then the bar B is moved towards thebottom of the slot by means of thescrews. The bar B forces the bar 6 ofthe covering downwardly of the slot to thereby pull the covering aroundthe roll so that it is in a taut and flat unbuckled condition.

lVith the structure described it is not only possible to tension thecovering tothe desired degree but by means of the novel arrangement acovering may be easily and quickly applied to orremoved from the roll tothereby facilitate the changing of coverings as may be desired.

The invention is adapted for broad ap plication whenever it is desiredto provide a covering for a plater roll or the like which is removabletherefrom. Many changes may be made in the form of the inventionwithout-departing from the spirit and scope thereof and I prefertherefore to belimited by the appended claims rather than by theforegoing description. I r o What I claim and, desire to secure by Letters Patent is: a

1. Ao roll and removable coveringftherefor in combination with meansforsecuring them together comprising, a shoulder extending-longitudinallyof said roll, reinforcing bars at opposite ends of said covering one ofwhich is adapted to engage beneath said shoulder and a clamp bar movableradially;- of said roll "for engaging the other of said bars of thecovering and drawing said cover ing tightly around said roll.

2. Aroll and'fremovable covering therefor "1n combination with means forsecuring them together comprising, the said roll being provided with aslot longitudinally thereof having 'a recess in the lower side thereof,bars carried at opposite ends of said covering one of which is adaptedto lie in saidrecess, while the other, lies in said slot, a clampmovable radially of said slot for engaging the last named, bar wherebythe covering is pulled taut around said roll and means for actuating'saidbaru 3. A roll and removable covering therefor in combination withmeans for securing them i, together'comprising, the said roll beingprovided with a longitudinal slot on the periphery thereof having arecessin the lower-side thereof forming a a ashouldera extendingthroughout the'length of said slot, bars car: ried at opposite ends ofsaid covering, one ofsaid bars being adaptedto engage beneath the saidshoulderand the other for lying in said slot, a clamp bar forengagingthe upper side of saidlastnamed bar which is movable in said slot fortensioning the .covering about said roll and means for securing thesaidbar' 'v in place on saidslot. 1

I .4 ,A roll and removable covering therefor -"in combination with meansfor securing them 'togethercomprising, the said roll'being pro- -1engaged beneathsaid shoulder and the covering extending upwardlytherefrom over the curved wallof the ,slot and around'f'the A peripheryofth e'r roll with the 'oppositeend I of said-covering and itsv bardisposed on said slot, and a clampfbar in said slot having its underside in abutment with saidlast named barfor tensioning the covering'about said roll. I a a 6. A roll and removable covering therefortogether comprising, the said roll beingproin combination withmeansfor-securmg them I vided'with a longitudinal slot in the periphicry thereof having its upper side walls curvthe covering 'mayv beextended upwardly other bar may lie in said slot. andla clamping ingoutwardly, a shoulder formedby are-c o.

cessinonewall of said slot,-.bars on opposite g ends of saidcovering,ione of saidbars adapted to engage beneath said'shoulder'sothattherefrom: and around the rollso thatthe bar forengaging said last namedbar-ifortensioning said covering about said roll, and

means forclamping said barin place in said 7 slot to maintain saidcoveringin itsitensioned 9 condition. 1

7. A rolland removable'covering therefor in combination with meansforsecuring them 1 a side thereof, bars at opposite ends of saidcovering,'one of said bars adapted to enter said recess andfabut saidsurface and, a. clamp Y i 7 bar in said slot provided on the lower sidewith a recess" for receiving the bar; at the other end of said coveringwhereby'thecov- I JAM S IJQHNSTQNL i ering. may be tensioned aroundsaidroll. o-

- vided witha longitudinal slot inthe peri'phery thereof having itsupperside walls curv- I that the covering may be extended upwardslytherefrom and around the roll so thatthe 7' 'other'bar may lie in saidslot and ,;a clamp- 1 5;.Aroll and removablei'covering therefor i incomblnatlonwlth mea'nsfor securing them 7 1 together comprising, thesaid rollzbeingfproing bar fortengaging said last named-bar for.tensioning said covering about'said roll.

.vided with a longitudinal slot in the-peripho erylthereofnwhich' hasupwardly and 'oute wardly curving walls, a shoulder in a wallof ,saidslot, the said covering having bars at l G5 opposite ends thereof, oneof; said bars being I:

ing outwardly, a shoulder formed by a re cessin one wallofsaidslot,'bars on ooppo' site ends ofisaid. covering, one of said bars.adaptedto engage'beneath'said shoulder'so

